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Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

In [1]:
import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import ExprTuple, beta, gamma, i, x, y
from proveit.linear_algebra import ScalarMult, TensorProd, VecSum
from proveit.numbers import Add, Interval, Mult, four, one, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [i]
sub_expr2 = Mult(gamma, beta)
sub_expr3 = TensorProd(x, y)
sub_expr4 = Interval(two, four)
sub_expr5 = Mult(i, Add(i, one))
expr = ExprTuple(ScalarMult(sub_expr2, VecSum(index_or_indices = sub_expr1, summand = ScalarMult(sub_expr5, sub_expr3), domain = sub_expr4)), VecSum(index_or_indices = sub_expr1, summand = ScalarMult(Mult(sub_expr2, sub_expr5), sub_expr3), domain = sub_expr4))
expr:
In [3]:
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
Passed sanity check: expr matches stored_expr
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\left(\gamma \cdot \beta\right) \cdot \left(\sum_{i=2}^{4} \left(\left(i \cdot \left(i + 1\right)\right) \cdot \left(x {\otimes} y\right)\right)\right), \sum_{i=2}^{4} \left(\left(\left(\gamma \cdot \beta\right) \cdot \left(i \cdot \left(i + 1\right)\right)\right) \cdot \left(x {\otimes} y\right)\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 18
operands: 3
2Operationoperator: 7
operand: 6
3ExprTuple25, 5
4ExprTuple6
5Operationoperator: 7
operand: 10
6Lambdaparameter: 43
body: 9
7Literal
8ExprTuple10
9Conditionalvalue: 11
condition: 16
10Lambdaparameter: 43
body: 13
11Operationoperator: 18
operands: 14
12ExprTuple43
13Conditionalvalue: 15
condition: 16
14ExprTuple17, 23
15Operationoperator: 18
operands: 19
16Operationoperator: 20
operands: 21
17Operationoperator: 32
operands: 22
18Literal
19ExprTuple26, 23
20Literal
21ExprTuple43, 24
22ExprTuple25, 26
23Operationoperator: 27
operands: 28
24Operationoperator: 29
operands: 30
25Operationoperator: 32
operands: 31
26Operationoperator: 32
operands: 33
27Literal
28ExprTuple34, 35
29Literal
30ExprTuple36, 37
31ExprTuple38, 39
32Literal
33ExprTuple43, 40
34Variable
35Variable
36Literal
37Literal
38Variable
39Variable
40Operationoperator: 41
operands: 42
41Literal
42ExprTuple43, 44
43Variable
44Literal